How about the backgammon 531 mobile phone

If you like it, just like it.

It may be that the chat history in your QQ, as well as the traces of the Internet, have not been cleaned up for a long time, resulting in insufficient space. To clean up regularly, I really can't go up, delete some text messages, delete some unwanted mobile phone software, and then clean up Q's chat history and Internet traces after boarding Q.

It really didn't work, so I restored the factory settings.

Just drop the memory of the phone, try not to restore the factory settings (note that it is a mobile phone, not a TF card).

Here's how to try it out:

1. Press and hold the power button for 30 seconds to try it.

2. Shuangqing try: Press and hold the lock screen button for 10 seconds to restart the phone, then press and hold the lock screen button and the volume plus key at the same time, and release the lock when the vivo interface appears for the first time.

Continue to press and hold the volume plus key until you enter recovery mode, and first select Erase all data to factory reset; Then press the ON key to confirm, then press the volume down key to select yes, then press the ON key to confirm, then press the volume down key to select Restart, and then press the ON key to confirm.

3. If it still doesn't work, it is recommended to go to our local after-sales service center to test the mobile phone: the address of the after-sales service center and **You can enter the home page of the vivo official website - service - outlet query - query.

The main feature of BBK's mobile phone is perfect sound quality, and the mobile phone function menu is also very soft.

Actually, I like BBK's i6 phone. It is a blue and white porcelain mobile phone.

I've been a fan of flip phones from the very beginning, and they feel like they're using SRS Wolfson Yamaha's innovative technology.

Enjoy it like a theater.

Perfect sound quality. srs

Sound restoration: extracts the spatial and environmental information from the original audio file, compensates for it, and restores it to the original audio signal.

"Immersive" sound: Restore the sense of scene and bass effect, achieve perfect stereo sound effect, and truly reproduce the theater-like feeling.

wolfson

Hardware decoding: professional independent Wolfson audio decoding chip, 24-bit decoding, high-quality reading of ** files, to achieve D a conversion.

Natural sound: high signal-to-noise ratio, low noise, so that the sound quality is more pure.

yamaha

Class D power amplification technology: the unique anti-burst technology sets the upper and lower thresholds for the analog signal to prevent signal distortion; Efficient amplification of analog signals, low power loss, efficiency can reach more than 90%.

Lingering sound: no distortion when the bass, no broken sound when the treble, perfect interpretation**.

Samsung OLED screen, 26W color.

Inch 16:9WQVGA

1. The color is vivid, gorgeous and full, and the color reproduction degree can reach 100%.

2. The contrast ratio is higher, up to 30,000:1, which is 30 times higher than that of ordinary TFT screens.

3. Ultra-wide viewing angle display, which can reach 170 degrees without distortion.

4. Using self-Kaisheng luminescence technology, it can automatically adjust the power consumption according to the best color and save 8% to 30% of power compared with the general TFT screen

Backgammon mobile phones are OK, support domestic production, buy foreign mobile phones or strong foreign countries, China is weak.

It's not good, it's a domestic machine, and the mobile phone doesn't feel like a good phone at all. It's shameless to use.